1 /* Convert characters in input buffer using conversion descriptor to
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public License as
9 published by the Free Software Foundation; either version 2 of the
10 License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
17 You should have received a copy of the GNU Library General Public
18 License along with the GNU C Library; see the file COPYING.LIB. If not,
19 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
23 #include <gconv_int.h>
24 #include <sys/param.h>
30 __gconv (__gconv_t cd, const unsigned char **inbuf,
31 const unsigned char *inbufend, unsigned char **outbuf,
32 unsigned char *outbufend, size_t *irreversible)
37 if (cd == (__gconv_t) -1L)
38 return __GCONV_ILLEGAL_DESCRIPTOR;
40 last_step = cd->__nsteps - 1;
42 assert (irreversible != NULL);
45 cd->__data[last_step].__outbuf = outbuf != NULL ? *outbuf : NULL;
46 cd->__data[last_step].__outbufend = outbufend;
48 if (inbuf == NULL || *inbuf == NULL)
50 result = DL_CALL_FCT (cd->__steps->__fct,
51 (cd->__steps, cd->__data, NULL, NULL, NULL,
53 cd->__data[last_step].__outbuf == NULL ? 2 : 1, 0));
56 const unsigned char *last_start;
58 assert (outbuf != NULL && *outbuf != NULL);
63 result = DL_CALL_FCT (cd->__steps->__fct,
64 (cd->__steps, cd->__data, inbuf, inbufend,
65 NULL, irreversible, 0, 0));
67 while (result == __GCONV_EMPTY_INPUT && last_start != *inbuf
68 && *inbuf + cd->__steps->__min_needed_from <= inbufend);
71 if (outbuf != NULL && *outbuf != NULL)
72 *outbuf = cd->__data[last_step].__outbuf;